There is a long-standing discussion among some consciousness philosophers, about the need to distinguish between the content of consciousness and the vehicle that enables that content. You look at a two-dimensional illuminated glass panel, but you see through the TV screen to the content beneath. Bollox. This may surprise, but there are only vehicles to be seen. All we can talk about are media, the surface, the vehicles. The content is subjective experience, and we can not refer to that. Language has limits.